doctrine of the key, or sacerdotal binding and loosing as taught in Holy Scripture, the Fathers of the PrimitiveChurch, and in the United Church of Great Britain and Ireland, in a letter, with an appendix, addressed to the Rev. Dr. Pusey, Regius Professor of Hebrew, and Canon of Christ Church, Oxford, in refutation of certain notions lately put forthby him in a sermon preached before the Members of that University